Tumbler sleeve



FIG. 1 is a side perspective view of a tumbler sleeve embodying my new design;

FIG. 2 is a top perspective view of the sleeve of FIG. 1;

FIG. 3 is a side elevational view of the sleeve of FIG. 1;

FIG. 4 is a top plan view of the sleeve of FIG. 1; and,

FIG. 5 is a bottom plan view of the sleeve of FIG. 1.

The broken line representations of items in FIGS. 1-5 are for purposes of illustration only, and form no part of the claimed design. 

CLAIM The ornamental design for a tumbler sleeve, as shown and described. 